md/raid5: move max_nr_stripes management into grow_one_stripe and drop_one_stripe
authorNeilBrown <neilb@suse.de>
Wed, 25 Feb 2015 01:10:35 +0000 (12:10 +1100)
committerNeilBrown <neilb@suse.de>
Tue, 21 Apr 2015 22:00:42 +0000 (08:00 +1000)
commit486f0644c3482cbf64fe804499836e1f05abec14
tree1cb95a03d09942e04af8ec716652180b35c4f1ef
parenta9683a795bcca6d0e7fe4c4c00e071218f3f4428
md/raid5: move max_nr_stripes management into grow_one_stripe and drop_one_stripe

Rather than adjusting max_nr_stripes whenever {grow,drop}_one_stripe()
succeeds, do it inside the functions.

Also choose the correct hash to handle next inside the functions.

This removes duplication and will help with future new uses of
{grow,drop}_one_stripe.

This also fixes a minor bug where the "md/raid:%md: allocate XXkB"
message always said "0kB".

Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid5.c